On March 12, Beijing time, the Indian Wells WTA1000 ushered in the fourth round of the focus battle, and Chinese star Zheng Qinwen will face Ukrainian star Kostyuk. At the end of the first set, Zheng Qinwen and Kostyuk staged a break battle, and finally Zheng Qinwen won 6-3, and Zheng Qinwen won 6-2 in the second set, and he will play Swiatek in the next round.

In the first set, Zheng Qinwen took the lead in serving, and after the two tested each other in the opening game, Zheng Qinwen was in trouble in the second service game, and she sent a good serve in a row when she was 0-30 down, and winning this game gave her a lot of confidence. Get a break point in the opponent's service game, but the opponent saves the first break point with one serve. After the draw, Kostyuk made a double fault and gave Zheng Qinwen a break point, but Zheng Qinwen did not seize the opportunity and was saved by his opponent again. Zheng Qinwen then backhanded a straight line to get the break point again, and the third break point Zheng Qinwen lost his impatience and won the game in a close match with the opponent's bottom line, and the score came to a 3-1 lead. In the crucial fifth game, Zheng Qinwen's serve encountered a crisis again, but she was very passive when she lost a good serve, and finally Kostyuk successfully completed the break, and the score came to 2-3, and the two sides returned to parity.

In the sixth game, Zheng Qinwen's gun return was more resolute, and the opponent also gave her a certain chance, four consecutive double faults gave Zheng Qinwen a chance to break again, and in the end, Zheng Qinwen did not disappoint the opponent, and the score was successfully broken and the score was again dominant 4-2 lead. In the seventh game, Zheng Qinwen's serve game was very rigorous, opening 15-15, and then the opponent's return was very flat, tearing the angle to win this point. After 30 draws, Zheng Qinwen made a mistake and sent a break point, and under pressure, Kostyuk seized the opportunity, Zheng Qinwen returned the ball and flew away, and the score came to 3-4 after being broken again. In Kostyuk's eighth game of serve, he double-faulted again to send a break point, and Zheng Qinwen effortlessly broke back again, and the service game came to win the set. In the end, Zheng Qinwen won smoothly, and the score was fixed at 6-3. In the second set, Zheng Qinwen did not give his opponent a chance, and won 6-2 to successfully advance to the top 8.